Air treatment or purification apparatus



FIG. 1 is a perspective view of the front from above right side of the air treatment or purification apparatus, showing our new ornamental design;

FIG. 2 is a perspective view of the rear from above left side thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left side elevational view being a mirror image thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken line showing is included for the purpose of illustrating and forms no part of the claimed design. 

The ornamental design for an air treatment or purification apparatus, as shown and described. 